Two-level Addressing o Things are different when changing ones point of attachment to the internet o Mobile node mn, or mobile host (MH), in the mobile computing environment may change its point of attachment to the internet say from 140.124.182Xto128.10.7Z
Two-level Addressing Things are different when changing one’s point of attachment to the internet. Mobile node (MN) , or mobile host (MH), in the mobile computing environment may change its point of attachment to the internet, say from 140.124.182.X to 128.10.7.Z
MN140124.182X R 140124.182 Internet 128.107 R 128.10.7Z MN140124182X
R R 140.124.182 128.10.7 Internet MN 140.124.182.X MN 140.124.182.X 128.10.7.Z
What is mobile p o Modification to ip that allows nodes to continue to receive datagrams no matter where they happen to be attached to the Internet o Scalability has been a dominant design factor o Recall that ip can identify a node on the internet uniquely
What is Mobile IP Modification to IP that allows nodes to continue to receive datagrams no matter where they happen to be attached to the internet Scalability has been a dominant design factor Recall that IP can identify a node on the internet uniquely
If no mobile p o Two ways to support mobility o Change IP address whenever it changed its point of attachment o host-specific routes must be propagated throughout the relevant portion of the Internet routing infrastructure o above two approaches are not acceptable
If no Mobile IP Two ways to support mobility ⚫ Change IP address whenever it changed its point of attachment ⚫ Host-specific routes must be propagated throughout the relevant portion of the Internet routing infrastructure Above two approaches are not acceptable
Two Addresses for mobile p Mobile ip solves this by maintaining two addresses One identifies a communication endpoint Chome address o The other locates the mobile computer care-of address
Two Addresses for Mobile IP Mobile IP solves this by maintaining two addresses: ⚫ One identifies a communication endpoint (home address) ⚫ The other locates the mobile computer (care-of address)